Changes in acoustic features and their conjunctions are processed by separate neuronal populations

Rika Takegata, Minna Huotilainen, Teemu Rinne, Risto Näätänen, István Winkler

Research output: Contribution to journalArticle

28 Citations (Scopus)

Abstract

We investigated the relationship between the neuronal populations involved in detecting change in two acoustic features and their conjunction. Equivalent current dipole (ECD) models of the magnetic mismatch negativity (MMNm) generators were calculated for infrequent changes in pitch, perceived sound source location, and the conjunction of these two features. All of these three changes elicited MMNms that were generated in the vicinity of auditory cortex. The location of the ECD best describing the MMNm to the conjunction deviant was anterior to those for the MMNm responses elicited by either one of the constituent features. The present data thus suggest that at least partially separate neuronal populations are involved in detecting change in acoustic features and feature conjunctions.

Original languageEnglish
Pages (from-to)525-529
Number of pages5
JournalNeuroreport
Volume12
Issue number3
DOIs
Publication statusPublished - Mar 5 2001

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Keywords

  • Auditory event-related potentials
  • Feature conjunction
  • MEG
  • Mismatch negativity
  • Neural representation

ASJC Scopus subject areas

  • Neuroscience(all)

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